2.4 Monitoring Faults

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Vocabulary

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Creep Meters- a device that measures movement of a strike-slip fault using a wire
Laser-Ranging Devices- a device that measures movement on a fault using lasers
Tiltmeters- a device that measures vertical movements in a fault using water
Satellite Monitors- a device that detects any movement on earth's surface using satellites

Outline

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Monitoring faults

Devices that monitor faults

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Creep meters

• A wire stretched across a fault to detect the movement of a strike slip fault

Laser ranging devices

• uses a laser to measure the movement along a fault
  • can even detect tiny fault movements

Tiltmeters

• a level filled with water to detect any slanted movement

Satellite Monitors

• used to detect any movement on the Earth's surface

Monitering risks in the United states

• geologist determine the risk of earthquakes by locating where past earthquakes have happened
  • the highest risk is along The Pacific coast